Concrete-mixing apparatus.



H. M. CAPRUN.

CONCRETE MIXING APPARATUS.

APPLICATION FILED FEB. 28.1910.

Patented Dec. 26, 1916.

3 SHEETS-SHEET Wave MW W w H. M. CAPRON. CONCRETE MIXING APPARATUS.

APPLICATION FILED FEB. 28. I910.

Patented Dec. 26, 1916.

3 SHEETS- SHEET 2- 1W e H WA H. M. CAPRON.

CONCRETE MIXiNG APPARATUS.

APPLiCATiON HLEU 158.28. m0.

Patented Dec. 26, 19M

3 SHEETS-SHEET 3.

Qyflvezfarr 7 jwa 7h time is lost.

UNITED STATES PATENT OFFICE,

HOB-ADE M. CAPRON, O1 WIHNETIEA, ILLINOIS. ASSIGNOR TO MARSH CAPRON' MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CfiNCRETE-MIXING APPARA'llUfi.

Specification o! Lalters Patent.

Patented Dec. 26, 1916.

Application flied February 28,1910. Serial No. 546,356.

To all whom if may concern:

Be it known that; I, llmmoa M. (Lu-now, a citizen of the United Stale-n, rws zling at, Winnetkzi, in the. county of Cook and .jlxntc of Illinois, have invontcd ucrllnin no and useful Improvements in Concrete-hiking Apparatus, of which the following is a specificntion.

My imeut-ion relates to a cm: "in mixing machine of lhn hzxLu-h type, that i. u v. l' n'in of mixing np mrnlus in which lhc ilhl Ll'lillare intermii'hmlly introduced into this mix ing drum in munsnrerl ninonnl's.nr mlllllflfi; and so mixed L gulhor and (lischnrgco lit-I'll" from, the irodnct being in this manner kept substantially ui'forni in its clnu'nclm; nml tho invention las for its primary ob -ccl; to provide on nppnrntus of this Lypo. so unnstruclmd and capable of being so opurnmd that tho work of lnunlling the ingzjrmiicnts of [he concrete at the street low] may he continuous instead of intcrmiltnnl. a, is the cas with batch mixers which hn vc lwr-n hora ii'o'fore used.v This work is usrmlly done by shovclcrs nnd in tin: msc of rim,"ll|ni'y butch mixers the cuincnt, crushed stuuc, cm, on; sliovelcii by hnml from piles of the mnlrllnl in the slrccli, or ulhciplnco where the mnchine is operating, into n. charging; hopper which is imurrnittcnbly hoislcd and its contents dumped into the \ll'lllll. While the charming hoppinislicing raise-Ll, dibuhurgml and fiUWLH'Q'AL the slmwlcrs must nlivionssly interrupt thrilwork and thus considerable Thorn is; nnolhcr class of concrcl: mixing machines in which the matcrinls going to make up the concrelo are fed continuously into the mixing drum by menus of huckot; conveyors or similar continuously acting apparatus. In the-case of machines of this sort the work of tho shovelers can .be uninkerrupted, but. this contin uous math all of char ing is objectionable for reasons that are .wo nmlerstood nndhn'vo led to this type of mixing machine falling into disuse.

My invention provides a machine in which. the mixing nppara tns 1'1; charged in bntchcs, bill; which, at" the same time; permits the IilAOWElCl'S Ln work substantially wilhunt intm'i'np'tion; lholcby cornhining tho advantugos: of the prior lmown system; while ob vinling lhuir ilimulvnnhngcuus features.

l'ln: im'cnLiun has for further objects such ollmr new nmi improved constructions, 1-. mango-mums and devices in concrete mixing innchinos ns will he horoinnlti'ir described and claimed.

in: invention lb illuselrulcd in ccrLnin profrrrul nmlimlinwnls in Ho: in'iunmpiulyiug lh'nwings, n'hrrnin--- Figure l is ii siilc vluvnlion 'ul' ll-u appamlxns, vcl'toin pni'lS being; shown in sncLion; Fig :1 section taken on line EZ-2 01 Fig. 1; Figs. 3 nnd l, details in clnvul'inn 0f the cni'rim', showing tlnsome in ilill'urunt posh blur-.5; Fig. 5 1 sectional \ilEW on line 55 of Fig. i looking in the direction of the iii-mum; l 'ig: (i u. frnglnnnlnry View illustrating a nirnlilic-niion; nod Fig 7 an owl clcvu lion of the form of nn mrnlus shown in l 'ig.i".

l'iihu chnrnclcrs nl rolm'oncu imlicn-Lelike 1m rls in the, sevorni figures 0! tho drawings.

Referring first ln Figxi l to 5 inclusii c, A roprzescntes n, truck or carriage of any preform-ll comm-notion, slipporlicnl on the pairs of whccln w and IL. 'llin mixing device may h in batch mixer of any desired construction. I have shown a mixes of a usual type comprising .1 drum l3 supported on the rollers 12 and driven from :1 shaft 13 provided with tho pinions 14 which mesh with the rocks 15 on the drum. (3 in a discharge chute In; which the mixed concrete is dischurged from the d rum, and D is :1 charging hopper. Preferably n slide gate or other valve or emit-rolling device is provided for shnttin off or controlling the feed of the material from the feed hopper to the drum. F01- example, a gu-to 16 may be sliclnbly mounted in the hopper D in such manner as to close its feed openin 17 (Fig. 5). In the arrangement shown he mm'cn ents of the gate 16 are controlled by a'lo'ver l8 rigidly sooured to a. rock shaft 19, like rock shaft carrying; on its other end the short arm or-lcver 50, links 21 and 9.2 connecting levers 18 and 20 respectively, with the gate 16.

I have shown and described a suitable form of mixing device but it will be understood that my invention is not limited to any particular construction of mixer. The mixer is charged by means of a carrier E which in turn is adapted to be filled from a bin F, which latter is placed near the ground and is intended to be filled, by hand labor or otherwise, from piles of material. on the ground or elsewhere. After the carrierhas received its lead it is drawn up to a position above the feed hopper D over a track G and is then dumped, preferably by means which is automatic, into a feed hopper. The car rier E consists preferably of a car provided with the flanged rear wheels 22 and the flat wheels 24 arranged in advance of the flanged wheels 93. This construction is in onforniity with the preferred construction of the track G, which, as shown. consists of a pair of angle irons, the horizontal flanges of which 25 support the wheels ll, while the vertical flanges 26 carry the flanged wheels 23.

Preferably, the lower portion ll of the track is made separate from the upper portion G, being removably seeured'thereto, for example. by the splices The bin F is mounted above this removable track portion ll upon the supports 28. The bin may be of any desired construction. 1 have shown it as provided with the dumping bottom. sections 29 and 30 which are hinged to the bin and are held in their closed position by means of the latches 31. The bin may have therein the deflector 32. Preferably, the track section H is supported on wheels 33.

The carrier or car E is prmided with a bail 3i pivoted to the carrier back of its center and to this bail is secured the end of a cable, or other flexible. connecting device, which cable runs over sheaves 36, 37

i and 38, supported on a framework 3.) and then over a drum or Windlass 40L v Movement may be imparted to the vari- I one devices of my apparatus by driving,

means of any desired sort. I have shown, for purposes of illustration, an electric motor J, on the shaft 41 of which is loosely mounted the winding drum 40 adapted to be coupled to the shaft by the clutch 4). of any usual combination. The same motor may be employed for rotating the mixer It and to this end a clutch 43 is provided for coupling shaft 13 to, the' motor shaft U. Ordinarily, inthis form of apparatus,

means is provided for moving the supporting truclt which carries the apparatus. To this end, 1 provide the axle H of the truck with the sprocket wheel 45, which is con- [looted by a chain 46 with the sprocket 47 on a counter-shaft 48 carrying a bevel gear l9, which is meshed with a bevel gear 50 adapted to be coupled with the motor shaft 4-1 by the clutch 51.

The carrier E may be dumped or otherwise discharged into the feed hopper D in any preferred manner. I have shown the flanges 25 of. the angle iron tracks G cut away from the vertical flanges 26 and bent down into substantially horizontal position, as shown at 52. These track portions 52 may be supported on brackets 53 on the cross pieces 54, extending from the tracks (r to the uprights frame 39. The extremities of the track portions are curved up at 5t; to form stops for the front wheels it of the carrier, As a result of this arrangement the carrier, when it reaches the upper end of the track. is tilted first into the position shown in Fig. 3 and afterward into that shown in Fig. l. The front of the carrier is provided with a hinged door 57 which is normally held closed by a latch 59 pivoted to the carrier, the latch having a tooth 59 which engages a pin 60 on the door. If desired, the arrangement may be repeated on the other side of the door. The track portions 52 are preferably formed with offsets 61. so positioned that the wheels EH pass over the same just as the latch or latches 58 come into contact with the stop or steps 6'2, secured to the feed hopper D.

The drop of the forward end of the car which results brings the latch 58 sharply into contact with the stop 62 and the load in the carrier pushing against door 57 opens the same, allowing the load'in the carrier to be discharged into the feed hopper. Pref erably' the hopper is provided with a rest 63 for the end of the/car. The dumping action is such as to discharge the material with some force from the carrier, insuring complete discharge.

In Figs. (3 and 7 I have shown a modified form of construction which relatesmer'ely to the su iplementary truck, as it may be called, which carries the-bim indicated in this figure by F, The sup lemehtary truck in this case consists of a fi'ame (54 secured to the frame of truck A by the splice lates (i5 and supported on wheels 66 whicl are mounted on an upright frame 67 in guides ($8 on the truck frame (34. A screw 69, provided with a hand wheel 70, extends through the cross piece 71' of frame 6-1 and into a stationary nut 72 on the cross piece 73 of frame. 67. Continuous with the tracks G on the truck A are truck sections 74 which are pivoted to the tracks G by the pivoted splice plates 75. The track sections 74 at their ends are formed with the slots 76 which receive the axle 77 which is secured to frame 67. The purpose of this arrangement is to level the track sections '74 in case the apparatus is standing on un oven gronnil.

i some nimlilii-alions in tha \lBYllH anil arrangi-mvnl shown illlll Ilwsniihril will I'Pllll ll faigg f-sl llir'in.-i'lws L'- lhoan Fliillwl. in llii. nil, i iii) am limi lll YHlf lo the v\- art uonsl'riir-lions. aria i rvnicnts proportions aml rlusign oi parts slnin'n, vxri-pl as ho-i ll lli'lltiilllll'r, arr inallw limitations on the :laiin hurla'il.

The operation of lhe S('.l'll (:(l is an follows: A lining thal, tl materials lo lie inixial, lflllt1l.l stun-i sail-l rennin and the lilug aria in piles on tho ground nvar lhr, win l {rein-ring now in th apparal as .irli -nlarly shown in the limb live ligiinrsi, lhwa nialrrials will. he slim vlail or iilirrwil il gaisiliwl in lliu'hin. l'lnr folding liullnni r'l'l'l'iE'il1-li" anil Ill ol wliiih are. of i'znnrsa, elosril. ll lllll than is unongh material in the hill in lill or approxiniallily lill tho rari'iir, bin lalxrln-s 3" nill lw r0- iOflSLll so that the: lnalli'irial is rllnnpeel. into the carrier (jlnlzuli ill will now be operated to L'hllillll the \\lll(lll+. or winding (ll'illll with the motor shaft a nl as a rcsnlii, the varrirr nill he pnlli l up on ljrark U aml 'lls llllllilll llllllljliil into the fol-ii lmppar I) in the mannnr al -m'u iliscrilnal. in the arraiigz vinaiit shown Hi0 hark of 1111' carrier pnshvs against ill i fillllllfl lllllillllll sirrtions 12!) anal 3? of bin F and l-liisvs lln' Hanan, lilia ap 'iaralns above ill:-

la'lvliw 31 lining aii'ang 'ial so as to aw; in; grainy. is soon as the iiolloni of Mn l" is rinse-ll the sliowlvl's n'ia y liagfin filling lln: samr: again. \iilli a propvr l'm'i'v nl' iall l relers, the lll'll may lie irmiplii l lilllli ii llm limo ray in has lllf'll i'vininv'l lo ils ii-isilion ltllCii lillfl hinv To ralara lli arrior line clutch 12 is opvi'alml lo uni-(mph: lllira lull ing (lrnm if]. The lath-r is shown as pr rider] with an ordinary i'nrln oi" lairn'l ln'al-ze TS am] this may ha nsml to minl rol the: unwiniling oi, calilv 35 n'hrn tho cal-rim" is lowelanl. \Yhvn fin: nmtvrial is ilnznpial into food hopper D, its sliiln gate? 16 is prvi'i'ralily nlosm'l To ailmit llni rr'harga inio tho llliXli' wliirh has liven set in rol lion h means of (latch 43, the o mrator prasars (lrmin on lovvr I8 Whirh throws up 'll'ir i ii gate ill. Th0 IfPGd gate may than hr ifll'ifi ijll in ruailim-ss for another charm from Farrier F3. The same operator ma also laka rare oi the dis rhargfi when the mixing: has proc-iailerl sailfiuivnl'ly far. IF i'lir discharge rhnlo (l is of the fai'niliar killing sort, whirl] projects into the interior of tin- (lrnn'i B, when it m the position shown in Fill, 1. ii: will illsohargo iilll? material from lihr: dram. To Stop tin rlisi-hm'ge ills innar and is liiltnil downwardly. This may he done lay meal. of the lever 73 which is connectml Willi the hate (I by a. link or links the lover h ng' held at any (lesiria'l position lay mians of the notched quadrant, 81, engaged by the tooth carrying 111(l 8:! on the lover.

ill Will la. se-vn that In this arrangement of parts llismixing van ha rarriial on nonlinuonsl ainl wilhonl any loss of limo. Thv ,\llc|\'llllH1ll;l work almost uninlorrnptmlly. 'l'i'nbin may he iillml often enough so that lhrrn is always a cliargn for tho mixer I'QIHLV \\'llll1l(!\'('l" it may la: proper to intrmlnvc new niatmial. Th0 n'liolr apparatus is nmnntml on \rln'els and by coupling the apparains \\'lil('il rlri res wheels 14. with tho motor shaft, in inrans of tho rlulrh .31, the apparatus may ho monal when rlesirml. For example, it may la': \rarlnal toward the piles of mate" rial on this ground as the latter are used up ainl iaplai-ml by the new malarial brought in in wagons or the like.

lr -l'vralilr Tho filling hin I has the same rag mrily a tho rari'iii' E, llu hopper D and lln' mixer. 'l'liu handling; of llnzinaterial may- In tho arrangement oi" parts SllOWIL b0 varriiai out in liatvlies of mrasin'cil quantity. lllifl this inn law llono liy opi rations \vhii-h pi-imaal sinnillain-onsly aml lay nPPHI'aUIS 'ahirli is sinipln in its rhararlvr :lllll inexpensiw in mnsli'nwt aml opvratv. Vhilo one lialwh is living inixlal in tha niixvi; another lialrli is living lransporluil in tho carrier E from 1hr lillin gr hill to The charging hopper, Jlllll ai' llnsanntiinv the sliorvlui's on liln: :lrval are filling np tho filling hin F which nwasnrw ilna hall-h whirl] is iwxt in order. l3 ilm limr-i tlw lillll'll in the inixvr is mixed anrl lisrlnii'gwi tho carrier will liavoilanipwl ils l ia l inlo llm i'liarging hopper and will lw on its way :l; to its position nrnlvr the lllllllfj' liin in rvailincs's to raruivu the nexl, lii'lll'lli ll i puratinn of the gain 16 the halal] in Ha human I) inlrorlnriml into the mixer llll'll ill oi'rnr l'ail'ore the arrival of Liir nvx-L hah'li in the carrier E. The apparalns Linus (UIlSllllCliOd obviates the panes sily l'or a separate nn asnring (levinv.

\ilwn ilrsirial the mixing apparatus proprr on lili main trnrl: may he nscalwithmil lilo liliim hin, the slqnylcnientary truck in this rasa living (latavlimi from the main lxrurh. it inay lm uonvqnicnt to make this ilrlarlimrnt; also in moving the apparatus from our job to another.

Whrn the modified apparatus of Fig. 6 is iiswl. llnlrarh' on the snp 'ilunientary truck may la: luvulud. in vase L110 apparatus is Working on inn-run groni'irl, by means of the NHW ll? anal lilnassoriaterl parts, as above rlasrrilaai.

it will ho nralarstnod that any sort 0i mofor or driving means may be employed for arluating the rarions moving parts of the apparatus. I ha re shown an electric motor simply for annvonioncu of illustration.

I claim:

in conrrolo mixing apparatus, the combination with a main truck, of a receptacle on being pivoted. together, and means for adszud truck, a snpplemcntzu'y truck, a, bln 0n plating the level of the track on the supple- 10 the latter truck, said trucks being removmental-5 truck.

111! sec rod tu 'ethm' track 0 sai( rucks D 1 5 n H HORACE M. CAPBON. \vlnch 1111110, :1 carnur adapted to be moved back and forth on sald tracks and to be \Yltl lOSSCHZ charged from the inn and to dxschargc mm 1. H. TRUMAN,

Said receptacle. thotlm'ks on the. two trucks E. L. BRPIIDERT. 

